Depreciation is the value a vehicle loses as it ages. According to Kelley Blue Book and Edmunds.com, autos with high rates of depreciation (fast declines in value) include the Hyundai Accent, Kia Spectra, Chevrolet Cavalier, Dodge Neon, GMC Sonoma, Dodge Intrepid Pontiac Sunfire, Pontiac Grand Am, Chevrolet S-10, and the Dodge Stratus